Application of rheological measurements to practical control of concrete

Content Provider	Scilit
Author	Banfill, P. F. G.
Copyright Year	1990
Description	The most comprehensive study of th i s type was carried out by Kay (3) on concretes to be considered for use in the hydraulic pressing of slabs. He investigated t r i a l mixes at three l e v e l s of A/C r a t i o , three l e v e l s of percentage fines, and five l e v e l s of W/C r a t i o , that i s , 45 t r i a l mixes, and also obtained r e s u l t s on production mixes. Two assessments of s u i t a b i l i t y were made, one on a too wet to too dry scale as judged by an experienced press operator, and the other on a scale of judgement of the finished product in terms of edge and surface defects. The r e s u l t was the diagram shown in Figure which i l l u s t r a t e s quite c l e a r l y the s u i t a b i l i t y band for the process. Further, Kay was also able to estimate that n = 1.94 rps and k = 1.7 ±0.3 Nms. These figures were 0.5 1.5 2'° 2'5 h ( N o b ) Fig.7. Kay's r e s u l t s , showing s u i t a b i l i t y band for hydraulic pressing process. Book Name: Rheology of Fresh Cement and Concrete
Related Links	https://content.taylorfrancis.com/books/download?dac=C2004-0-14039-5&isbn=9780429082207&doi=10.1201/9781482288889-39&format=pdf
Ending Page	290
Page Count	11
Starting Page	280
DOI	10.1201/9781482288889-39
Language	English
Publisher	Informa UK Limited
Publisher Date	1990-09-27
Access Restriction	Open
Subject Keyword	Book Name: Rheology of Fresh Cement and Concrete Building and Construction Concrete Defects Rheological Pressing Hydraulic Slabs A/c Made Kay Fig.7
Content Type	Text
Resource Type	Chapter